Invariants
| Level: | $240$ | $\SL_2$-level: | $16$ | ||||
| Index: | $96$ | $\PSL_2$-index: | $48$ | ||||
| Genus: | $0 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 10 }{2}$ | ||||||
| Cusps: | $10$ (none of which are rational) | Cusp widths | $1^{4}\cdot2^{2}\cdot4^{2}\cdot16^{2}$ | Cusp orbits | $2^{3}\cdot4$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| $\Q$-gonality: | $1 \le \gamma \le 2$ | ||||||
| $\overline{\Q}$-gonality: | $1$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 16H0 |
Level structure
| $\GL_2(\Z/240\Z)$-generators: | $\begin{bmatrix}99&26\\112&29\end{bmatrix}$, $\begin{bmatrix}104&133\\191&14\end{bmatrix}$, $\begin{bmatrix}126&113\\181&210\end{bmatrix}$, $\begin{bmatrix}143&8\\62&1\end{bmatrix}$, $\begin{bmatrix}220&147\\93&26\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 240.48.0.cu.2 for the level structure with $-I$) |
| Cyclic 240-isogeny field degree: | $48$ |
| Cyclic 240-torsion field degree: | $1536$ |
| Full 240-torsion field degree: | $5898240$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 48.48.0-48.f.2.1 | $48$ | $2$ | $2$ | $0$ | $0$ |
| 80.48.0-40.ca.1.8 | $80$ | $2$ | $2$ | $0$ | $?$ |
| 120.48.0-40.ca.1.16 | $120$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-48.f.2.8 | $240$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-240.o.1.1 | $240$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-240.o.1.38 | $240$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 240.192.1-240.bq.2.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.cs.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.et.1.10 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.fl.2.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.ji.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.jp.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.kn.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.kw.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.lr.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.mf.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.nd.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.nf.1.2 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.oi.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.op.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.pn.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.pw.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.288.8-240.tq.1.7 | $240$ | $3$ | $3$ | $8$ |
| 240.384.7-240.yl.2.2 | $240$ | $4$ | $4$ | $7$ |
| 240.480.16-240.dw.2.3 | $240$ | $5$ | $5$ | $16$ |